Answer:
The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .
Step-by-step explanation:
Distribute and simplify.
2(x+8)+6x
2x+16+6x
8x+16
8(x+2)
Change divide sign to multiplication sign, and flip second fraction
= 41/21 × 23/8
multiply top numbers together and multiply bottom numbers together
= (42×23)/(21×8)
=943/168
I think it’s D? If not then probably b